Perfil sanitário de rebanhos ovinos e caprinos da Microrregião do Alto Médio Gurguéia, no Sul do estado do Piauí, Brasil.

Resumo: Objetivou-se caracterizar o perfil sanitário de rebanhos caprinos e ovinos na Microrregião do Alto Médio Gurguéia, sul do estado do Piauí. Foi aplicado questionário em 53 unidades produtoras. O manejo sanitário, características das instalações e sinais clínicos das enfermidades foram descritas. Verificou-se que 92,4% dos rebanhos foram acondicionados em ?chiqueiros?. A higiene diária das instalações era realizada em 1,9% das propriedades e 13,2% não adotavam higiene sanitária alguma. A vermifugação foi a prática mais difundida (94,3%) e os principais achados clínicos foram sugestivos de doenças infecciosas e parasitárias. Conclui-se que o manejo sanitário tem sido empregado de forma inadequada, com a manifestação de sinais clínicos que podem decorrer de enfermidades peculiares a caprino e ovinocultura. Abstract: This study aimed to characterize the health profile of goats and sheep herds in the High Middle Gurguéia micro-region, the southern state of Piaui. A questionnaire was applied at 53 farms. The health management, animal facilities and clinical signs of disease were described. The results showed that 92.4% of the herds were kept in "sty". Daily hygiene of the animal facilities was carried out at 1.9% and 13.2% of farms did not adopt any health care. The worming practice was more widespread (94.3%) and the main clinical findings were suggestive of infectious and parasitic diseases. We conclude that the health management has been used inappropriately, with manifestation of clinical signs that may result from diseases peculiar to goat and sheep industr

Soroprevalência dos lentivírus de pequenos ruminantes em caprinos explorados na Micro-Região do Alto-Médio Gurguéia, no Sul do estado do Piauí, Brasil.

Resumo: Objetivando investigar a existência de anticorpos anti-lentivírus de pequenos ruminantes em rebanhos caprinos da Micro-Região do Alto-Médio Gurguéia, realizou-se um levantamento sorológico, envolvendo 723 animais. Para a detecção de anticorpos anti-lentivírus foi utilizado o teste de Microimudifusão em Gel de Agarose (MIDGA). Os resultados revelaram uma prevalência geral de 0,97% de animais positivos. Portanto, as Lentiviroses de Pequenos Ruminantes estão presentes em rebanhos caprinos da Micro-Região do Alto-Médio Gurguéia, no Sul do Estado do Piauí. Abstracts: Aiming to investigate the existence of antibodies to small ruminant lentivirus in goat herds in the Micro-Region of the Upper-Middle Gurguéia, there was a serological survey involving 723 animals. For the detection of anti-lentivirus antibodies was used the Micro-agar gel immunodiffusion test (MAGID). The results revealed an overall prevalence of 0.97% of positive animals. Therefore, Small Ruminants Lentiviruses are present in goat herds of the Micro-Region of the Upper-Middle Gurguéia in the southern state of Piaui

Soroprevalência dos lentivírus de pequenos ruminantes em ovinos explorados na Micro-Região do Alto-Médio Gurguéia, no Sul do estado do Piauí, Brasil.

Resumo: Objetivando estimar a prevalência dos Lentivírus de Pequenos Ruminantes (LVPR) em rebanhos ovinos da Micro-Região do Alto-Médio Gurguéia, no sul do estado do Piauí, foram coletados 965 amostras sorológica em 37 propriedades. Para a detecção de anticorpos antilentivírus foi utilizado o teste de Microimudifusão em Gel de Agarose (MIDGA). Os resultados revelaram soroprevalência geral de 0,51% de animais positivos. Portanto, as Lentiviroses de Pequenos Ruminantes estão presentes em rebanhos ovinos da Micro-Região do Alto-Médio Gurguéia, no Sul do Estado do Piauí. Abstract: In order to estimate the prevalence of Small Ruminants lentivirus (SRLV) in sheep flocks at Micro-Region of the Upper-Middle Gurguéia , in the southern state of Piaui, 965 blood serum samples were collected in 37 farms. For the detection of anti-lentivirus antibodies was used the MicroAgar gel immunodiffusion test (MAGID). The results revealed overall prevalence of 0.51% of positive animals. In conclusion, Small Ruminants Lentiviruses are present in sheep flocks form Micro-Region of the Upper-Middle Gurguéia , in the southern state of Piaui

Soroprevalência dos lentivírus de pequenos ruminantes em ovinos explorados na Micro-Região do Alto-Médio Gurguéia, no Sul do estado do Piauí, Brasil.

Resumo: Objetivando estimar a prevalência dos Lentivírus de Pequenos Ruminantes (LVPR) em rebanhos ovinos da Micro-Região do Alto-Médio Gurguéia, no sul do estado do Piauí, foram coletados 965 amostras sorológica em 37 propriedades. Para a detecção de anticorpos antilentivírus foi utilizado o teste de Microimudifusão em Gel de Agarose (MIDGA). Os resultados revelaram soroprevalência geral de 0,51% de animais positivos. Portanto, as Lentiviroses de Pequenos Ruminantes estão presentes em rebanhos ovinos da Micro-Região do Alto-Médio Gurguéia, no Sul do Estado do Piauí. Abstract: In order to estimate the prevalence of Small Ruminants lentivirus (SRLV) in sheep flocks at Micro-Region of the Upper-Middle Gurguéia , in the southern state of Piaui, 965 blood serum samples were collected in 37 farms. For the detection of anti-lentivirus antibodies was used the MicroAgar gel immunodiffusion test (MAGID). The results revealed overall prevalence of 0.51% of positive animals. In conclusion, Small Ruminants Lentiviruses are present in sheep flocks form Micro-Region of the Upper-Middle Gurguéia , in the southern state of Piaui

Transferência de imunidade passiva contra lentivírus de pequenos ruminantes em cordeiros.

[Transfer of passive immunity against small ruminant lentiviruses in lambs]. Abstract: To verify the occurrence of antibodies against SRLV in sheep flocks from farms located in Microregion of Feira de Santana, Bahia, we performed a seroepidemiological survey of 10 municipalities with the most effective micro sheep: Antonio Cardoso, Feira de Santana, Ipecaetá , Ipirá, Itatim, Pintadas, Rafael Jambeiro, Santa Terezinha, Santo Estevão e Serra Preta, totaling 384 samples collected from 48 municipalities visited properties. The samples were subjected to the test of agar gel immunodiffusion (AGID) to give negative results in all sera investigated. This finding can be attributed to the composition of herds, which are mostly of animals breed, the system of creation predominantly semi-extensive and type of exploitation for meat, which reduced the risk of introduction of lentivirus . Therefore, in order to preserve the genetic material already adapted to semi-arid climatic adversities, sanitary measures can be taken to prevent the entry of infectious agents circulating in these herds. This is necessary especially because of the tendencies of improving the productivity of small ruminant animals by the introduction of imported breeds

Railway-induced ground vibrations – a review of vehicle effects

This paper is a review of the effect of vehicle characteristics on ground- and track borne-vibrations from railways. It combines traditional theory with modern thinking and uses a range of numerical analysis and experimental results to provide a broad analysis of the subject area. First, the effect of different train types on vibration propagation is investigated. Then, despite not being the focus of this work, numerical approaches to vibration propagation modelling within the track and soil are briefly touched upon. Next an in-depth discussion is presented related to the evolution of numerical models, with analysis of the suitability of various modelling approaches for analysing vehicle effects. The differences between quasi-static and dynamic characteristics are also discussed with insights into defects such as wheel/rail irregularities. Additionally, as an appendix, a modest database of train types are presented along with detailed information related to their physical attributes. It is hoped that this information may provide assistance to future researchers attempting to simulate railway vehicle vibrations. It is concluded that train type and the contact conditions at the wheel/rail interface can be influential in the generation of vibration. Therefore, where possible, when using numerical approach, the vehicle should be modelled in detail. Additionally, it was found that there are a wide variety of modelling approaches capable of simulating train types effects. If non-linear behaviour needs to be included in the model, then time domain simulations are preferable, however if the system can be assumed linear then frequency domain simulations are suitable due to their reduced computational demand